2.4GHz wireless connection (including USB receiver and rechargeable mouse USB cable) Built-in 600mAh rechargeable battery It is ergonomically designed to relieve and prevent carpal tunnel syndrome. Optical laser technology for control It is convenient for users to use Wow-pen’s signature and it is comfortable to hold. L/R mouse button, 2 thumb buttons and clickable scroll wheel, dpi button. Choose the hand position that suits you. Plug and play, compatible with Mac.